Ultrasonic additive manufacturing of zirconium: Pilot results

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Abstract

Ultrasonic additive manufacturing (UAM) was successfully applied to the Zirconium material system to create a three-dimensional component prototype. The UAM process resulted in grain size refinement and significant localized deformation. Electron backscatter diffraction analysis revealed activated slip systems only applicable at high deformation temperatures, while texture analysis showed a decrease in measurable texture of the UAM build in comparison to the initial Zr-foil. Average tensile strengths in the X (sonotrode travel), Y (vibration), and Z (build) directions averaged 435 MPa, 458 MPa, and 359 MPa, respectively, demonstrating the viability of UAM for Zr-based materials. The delamination of some Z specimens along foil boundaries during loading suggests an interplay between interfacial Ti impurities introduced during welding and the spatial dependence of weld quality for this material system.

Original languageEnglish
Article number130330
JournalMaterials Letters
Volume302
DOIs
StatePublished - Nov 1 2021

Funding

This manuscript is authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy and is based upon work supported by the U.S. Department of Energy, National Nuclear Security Administration, Office of Defense Nuclear nonproliferation Research and Development (DNN R&D). The authors acknowledge the aid of Mark Norfolk and Adam Hehr at Fabrisonic LLC for their assistance with the UAM builds. The work of Tom Geer, Doug Stringfield, and Randy Parten is also much appreciated. This manuscript is authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy and is based upon work supported by the U.S. Department of Energy, National Nuclear Security Administration , Office of Defense Nuclear nonproliferation Research and Development (DNN R&D). The authors acknowledge the aid of Mark Norfolk and Adam Hehr at Fabrisonic LLC for their assistance with the UAM builds. The work of Tom Geer, Doug Stringfield, and Randy Parten is also much appreciated.

Keywords

  • Electron backscatter diffraction
  • Tension test
  • Texture
  • Ultrasonic additive manufacturing

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